Blar i Brage NMBU på forfatter "Solheim, Halvor"
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Alien plants, animals, fungi and algae in Norway: an inventory of neobiota
Sandvik, Hanno; Dolmen, Dag; Elven, Reidar; Falkenhaug, Tone; Forsgren, Elisabet; Hansen, Haakon; Hassel, Kristian; Husa, Vivian; Kjærstad, Gaute; Ødegaard, Frode; Pedersen, Hans Christian; Solheim, Halvor; Stokke, Bård Gunnar; Åsen, Per Arvid; Åström, Sandra Charlotte Helene; Brandrud, Tor Erik; Elven, Hallvard; Endrestøl, Anders; Finstad, Anders Gravbrøt; Fredriksen, Stein; Gammelmo, Øivind; Gjershaug, Jan Ove; Gulliksen, Bjørn; Hamnes, Inger Sofie; Hatteland, Bjørn Arild; Hegre, Hanne; Hesthagen, Trygve H.; Jelmert, Anders; Jensen, Thomas Correll; Johnsen, Stein Ivar; Karlsbakk, Egil; Magnusson, Christer; Nedreaas, Kjell Harald; Nordén, Björn; Oug, Eivind; Pedersen, Oddvar; Pedersen, Per Anker; Sjøtun, Kjersti; Skei, Jon Kristian; Solstad, Heidi; Sundheim, Leif; Swenson, Jon; Syvertsen, Per Ole; Talgø, Venche; Vandvik, Vigdis; Westergaard, Kristine Bakke; Wienerroither, Rupert; Ytrehus, Bjørnar; Hilmo, Olga; Henriksen, Snorre; Gederaas, Lisbeth (Journal article; Peer reviewed, 2019)We present the results of an inventory and status assessment of alien species in Norway. The inventory covered all known multicellular neobiota, 2496 in total, 1039 of which were classified as naturalised. The latter ... -
Alien species in Norway: results from quantitative ecological impact assessments
Sandvik, Hanno; Hilmo, Olga; Henriksen, Snorre; Elven, Reidar; Åsen, Per Arvid; Hegre, Hanne; Pedersen, Oddvar; Pedersen, Per Anker; Solstad, Heidi; Vandvik, Vigdis; Westergaard, Kristine Bakke; Ødegaard, Frode; Åström, Sandra Charlotte Helene; Elven, Hallvard; Endrestøl, Anders; Gammelmo, Øivind; Hatteland, Bjørn Arild; Solheim, Halvor; Nordén, Björn; Sundheim, Leif; Talgø, Venche; Falkenhaug, Tone; Gulliksen, Bjørn; Jelmert, Anders; Oug, Eivind; Sundet, Jan Henry; Forsgren, Elisabet; Finstad, Anders Gravbrøt; Hesthagen, Trygve H.; Nedreaas, Kjell Harald; Wienerroither, Rupert; Husa, Vivian; Fredriksen, Stein; Sjøtun, Kjersti; Steen, Henning; Hansen, Haakon; Hamnes, Inger Sofie; Karlsbakk, Egil; Magnusson, Christer; Ytrehus, Bjørnar; Pedersen, Hans Christian; Swenson, Jon; Syvertsen, Per Ole; Stokke, Bård Gunnar; Gjershaug, Jan Ove; Dolmen, Dag; Kjærstad, Gaute; Johnsen, Stein Ivar; Jensen, Thomas Correll; Hassel, Kristian; Gederaas, Lisbeth (Journal article; Peer reviewed, 2020)1. Due to globalisation, trade and transport, the spread of alien species is increasing dramatically. Some alien species become ecologically harmful by threatening native biota. This can lead to irreversible changes in ... -
Alien species in Norway: results from quantitative ecological impact assessments
Sandvik, Hanno; Hilmo, Olga; Henriksen, Snorre; Elven, Reidar; Åsen, Per Arvid; Hegre, Hanne; Pedersen, Oddvar; Pedersen, Per Anker; Solstad, Heidi; Vandvik, Vigdis; Westergaard, Kristine Bakke; Ødegaard, Frode; Åström, Sandra Charlotte Helene; Elven, Hallvard; Endrestøl, Anders; Gammelmo, Øivind; Hatteland, Bjørn Arild; Solheim, Halvor; Nordén, Björn; Sundheim, Leif; Talgø, Venche; Falkenhaug, Tone; Gulliksen, Bjørn; Jelmert, Anders; Oug, Eivind; Sundet, Jan Henry; Forsgren, Elisabet; Finstad, Anders Gravbrøt; Hesthagen, Trygve H.; Nedreaas, Kjell Harald; Wienerroither, Rupert; Husa, Vivian; Fredriksen, Stein; Sjøtun, Kjersti; Steen, Henning; Hansen, Haakon; Hamnes, Inger Sofie; Karlsbakk, Egil; Magnusson, Christer; Ytrehus, Bjørnar; Pedersen, Hans Christian; Swenson, Jon; Syvertsen, Per Ole; Stokke, Bård Gunnar; Gjershaug, Jan Ove; Dolmen, Dag; Kjærstad, Gaute; Johnsen, Stein Ivar; Jensen, Thomas Correll; Hassel, Kristian; Gederaas, Lisbeth (Journal article, 2020)1. Due to globalisation, trade and transport, the spread of alien species is increasing dramatically. Some alien species become ecologically harmful by threatening native biota. This can lead to irreversible changes in ... -
Assessment of manure and digestive tract content from slaughterhouses as a pathway for weeds and plant pests. Opinion of the Panel on Plant Health of the Norwegian Scientific Committee for Food Safety
Sundheim, Leif; Ergon, Åshild; Magnusson, Christer; Netland, Jan; Prestløkken, Egil; Sletten, Arild; Sæthre, May; Lid, Elin Thingnæs; Gifstad, Tron Øystein; Wendell, Micael; Brodal, Guro; Solheim, Halvor; Tronsmo, Anne Marte; Økland, Bjørn; Rafoss, Trond (VKM Report, Research report, 2016) -
Assessment of Quarantine Pest Dispersal from Norwegian Potato and Root Vegetable Packing Plants with Evaluation of Risk Reducing Options. Opinion of the Panel on Plant Health of the Norwegian Scientific Committee for Food and Environment
Sundheim, Leif; Magnusson, Christer; Sletten, Arild; Wendell, Per Hans Micael; Brodal, Guro; Ergon, Åshild; Solheim, Halvor; Tronsmo, Anne Marte (VKM Report;, Research report, 2018) -
Carbon dioxide and methane formation in Norway spruce stems infected by White-rot fungi
Hietala, Ari Mikko; Dörsch, Peter; Kvaalen, Harald; Solheim, Halvor (Journal article; Peer reviewed, 2015)Globally, billions of tons of carbon sequestered in trees are annually recycled back to the atmosphere through wood decomposition by microbes. In Norway, every fifth Norway spruce shows at final harvest infection by ... -
Characterizing individual tree biomass for improved biomass estimation in Norwegian forests
Smith, Aaron (PhD Thesis;2015:60, Doctoral thesis, 2020-11-10)Accurate estimates of tree biomass are necessary in order to realize climate change mitigation strategies such as large-scale carbon accounts of sources and sinks through time and biomass stocks for bioenergy. Biomass is ... -
Comparison of organic and conventional food and food Production. Part I: Plant health and plant production
Sundheim, Leif; Hofsvang, Trond; Magnusson, Christer; Eriksen, Gunnar Sundstøl; Brandsæter, Lars Olav; Brodal, Guro; Remberg, Siv Fagertun; Uhlen, Anne Kjersti; Andreassen, Åshild Kristine; Arukwe, Augustine; Bernhoft, Aksel; Bøe, Knut Egil; Haugen, Margaretha; Hemre, Gro Ingunn; Krogdahl, Åshild; Källqvist, Torsten; Lassen, Jørgen Fredrik; Næss, Bjørn; Rafoss, Trond; Skåre, Janneche Utne; Sletten, Arild; Solheim, Halvor; Steffensen, Inger-Lise; Torrissen, Ole; Tronsmo, Anne Marte; Økland, Bjørn Inge; Alexander, Jan (VKM Report, Research report, 2014) -
Forvaltning av ask i møte med askeskuddsjuken
Tollefsrud, Mari Mette; Timmermann, Volkmar; Schei, Fride Høistad; Solheim, Halvor (Journal article, 2017) -
Fungal succession in decomposing ash leaves colonized by the ash dieback pathogen Hymenoscyphus fraxineus or its harmless relative Hymenoscyphus albidus
Kosawang, Chatchai; Børja, Isabella; Herrero, Maria-Luz; Nagy, Nina Elisabeth; Nielsen, Lene R.; Solheim, Halvor; Timmermann, Volkmar; Hietala, Ari Mikko (Peer reviewed; Journal article, 2023)Introduction: The ascomycete Hymenoscyphus fraxineus, originating from Asia, is currently threatening common ash (Fraxinus excelsior) in Europe, massive ascospore production from the saprotrophic phase being a key determinant ... -
Import av tømmer og andre treprodukter som innførselvei for fremmede insekter, sopp og planter - trendanalyse av importstatistikk
Økland, Bjørn; Børja, Isabella; Often, Anders; Solheim, Halvor; Flø, Daniel (Rapport fra Skog og landskap, Research report, 2012)Import av tømmer og andre treprodukter kan bringe fremmede arter av insekter, sopp og planter som kan gi store skadeeffekter om de etableres i Norge. I verden kan det vises til flere eksempler på at import av nye arter med ... -
Liquid water absorption in wood cladding boards and log sections with and without surface treatment
Sivertsen, Mari Sand (PhD Thesis;2010:6, Doctoral thesis, 2010)Water absorption in wood in service is of great importance both because of the resulting dimensional changes of the wood and because of the risk of deterioration by microorganisms at wood moisture content levels above 20 ... -
Local and systemic defence responses in trees against pathogenic fungi : differences revealed at the transcriptional level
Yaqoob, Nadeem (PhD Thesis;2011:43, Doctoral thesis, 2011)Forest trees dominate the earth surface and has special place in the economy and ecology of the planet. Due to the long life span of woody trees they are challenged by the abiotic and biotic factors. Over the long history ... -
Mycorrhizal inoculation methods on Lutz spruce seedlings for afforestation of treeless landscape in Iceland
Böðvarsdóttir, Hlíf (Master thesis, 2018)Seedling mortality is a great problem in afforestation in Iceland and is most severe in a treeless landscape. It is not uncommon for new afforestation areas to have 30 – 40 % mortality in seedlings in the first five years. ... -
Ophiostomatoid fungi associated with bark beetles infesting broadleaved trees in Norway
Aas, Truls (Master thesis, 2017)The diversity of ophiostomatoid fungi associated with coniferous trees in Europe is quite well known. However, far less is known about the species associated with broadleaved trees. This study investigated the diversity ... -
Råte i gran på Nord-Vestlandet
Fjærli, Andreas Furnes (Master thesis, 2016-08-31)Grana vokser ikke naturlig på Nord-Vestlandet, men er blitt plantet ut i nyere tid. Heterobasidion parviporum er den største skadegjøreren av råtesopper i det naturlige utbredelsesområde for gran, men dens opptreden ... -
Råte i høyereliggende granskog på Østlandet
Bjørbæk, Lars Halvor (Master thesis, 2016-08-31)Råte kan være et stort problem i eldre granskoger, og i gjennomsnitt er hvert fjerde grantre i Norge infisert. I den lavereliggende skogen på Østlandet er Heterobasidion parviporum kjent som den verste skadegjøreren. I den ... -
Risk assessment of cockspur grass (Echinochloa crus-galli). Scientific Opinion of the Panel on Plant Health of the Norwegian Scientific Committee for Food Safety
Brodal, Guro; Netland, Jan; Lid, Elin Thingnæs; Ergon, Åshild; Magnusson, Christer; Sletten, Arild; Solheim, Halvor; Sundheim, Leif; Sæthre, May; Tronsmo, Anne Marte; Økland, Bjørn; Rafoss, Trond (VKM Report, Research report, 2016) -
Risk assessment of cockspur grass (Echinochloa crus-galli). Scientific Opinion of the Panel on Plant Health of the Norwegian Scientific Committee for Food Safety (VKM)
Netland, Jan; Lid, Elin Thingnæs (Research report, 2016) -
Risk assessment of tomato leaf miner moth (Tuta absoluta). Opinion of the Panel on Plant Health of the Norwegian cientific Committee for Food Safety, VKM Report 2017:24
Sundheim, Leif; Flø, Daniel; Rafoss, Trond; Wendell, Micael; Brodal, Guro; Ergon, Åshild; Magnusson, Christer; Sletten, Arild; Solheim, Halvor; Tronsmo, Anne Marte; Økland, Bjørn (Research report, 2017)